The Making of a Shimeji (easy, Windows version)

I am making this version first, because I need to experiment with some stuff before the hard version.
   First, you need a picture-editing software of some kind. I suggest Photoshop, or Gimp. I will put links in the comments. Because this is the easy version, just for people who want to have their own personal shimejis, I will tell you to download someone else's shimeji, because actually creating one is quite hard. When you have downloaded someone else's shimeji, (I suggest this one by Lunarrs- fav.me/d7988g5) then go into your picture editing program. Select 'open file' and find the shimeji you have downloaded. Click the first picture, it should be labeled 'shime1'. Open this up with your software. At this point, you can either trace over the silhouette of the original, or you can create you own entirely. If you want to create your own, just ignore the parts about layers. You do need to delete the original 'shime' file. If you have the right software, you can create multiple 'layers'. Create a layer over the original shimeji. Trace over the shimeji's silhouette, and fill it in with your colors and stuff. When you are done, you can delete the original layer. This next part is VERY important. You have to export it as a .png file. It will ask you if you want to replace the one that was already there. Say yes. Repeat for however many 'shime' files you have. Ta-da.

Comments, questions, concerns, and confusions below.